20645838

素因数分解:

$2^1\times 3^2\times {\mathrm{257}}^1\times {\mathrm{4463}}^1$

素因数の和:4728

約数の個数: 24

約数和(自身を含む): 44916768

約数和(自身を除く): 24270930

約数列:

[1, 2, 3, 6, 9, 18, 257, 514, 771, 1542, 2313, 4463, 4626, 8926, 13389, 26778, 40167, 80334, 1146991, 2293982, 3440973, 6881946, 10322919, 20645838]

約数ペア:

[(1, 20645838), (2, 10322919), (3, 6881946), (6, 3440973), (9, 2293982), (18, 1146991), (257, 80334), (514, 40167), (771, 26778), (1542, 13389), (2313, 8926), (4463, 4626)]